What is the main difference between a cold front and a warm front?
A warm front occurs on the boundary of a warm air mass moving into a colder region, while a cold front occurs on the boundary of a cold air mass moving into a warmer region. A warm front is typically associated with a high-pressure system, while a cold front is associated with a low-pressure system.
What is an occluded front distinguish between a cold occlusion and a warm occlusion quizlet?
The difference between the two different types of occlusions will be related to the temperature (density) of the air masses. If the coldest air is located behind the cold front, then it will be a “Cold Occlusion”. If the coldest air is located beneath the warm front, then it will be a “Warm Occlusion”.
What are the two types of occluded front?
Occluded fronts usually form around mature low pressure areas. There are two types of occlusion, warm and cold: In a cold occlusion, the cold air mass overtaking the warm front is colder than the cool air ahead of the warm front, and plows under both air masses.
What is the difference between a warm and cold air?
A mass of cold air is dense and has a sinking tendency. A mass of warm air is buoyant and has a rising tendency. When the surface is heated from the sun it then rising and continues to rise until the air mass is saturated.
What happens if a cold front meets a warm front?
They push against each other along a line called a front. When a warm air mass meets a cold air mass, the warm air rises since it is lighter. This configuration, called a cold front, gives rise to cumulonimbus clouds, often associated with heavy precipitation and storms.
When a cold front catches up with a warm front and forces all of the air up creating low pressure?
Occluded Fronts An occluded front usually forms around a low pressure system. The occlusion starts when a cold front catches up to a warm front. The air masses, in order from front to back, are cold, warm, and then cold again. Coriolis Effect curves the boundary where the two fronts meet towards the pole.
When an active cold front overtakes a warm front?
When an active cold front overtakes a warm front, an occluded front forms. An occluded front forms when a cold front overtakes a warm front, producing a complex weather pattern. When tow air masses meet, they form a front, which is a boundary that seperates two air masses.
What happens in a warm front?
A warm front forms when a warm air mass pushes into a cooler air mass, shown in the image to the right (A). Warm fronts often bring stormy weather as the warm air mass at the surface rises above the cool air mass, making clouds and storms. As the front passes over an area, the clouds become lower, and rain is likely.
Who wins in a warm front?
Warm air “wins” slides above cold air and eventually pushes it away. Cooler, clear, and dry weather occurs after the front passes. a front where a warm air mass is caught between two colder air masses and brings cool temperatures and large amounts of rain and snow.
How do cold fronts and warm fronts differ regarding their vertical slope?
Typically, cold fronts have relatively steep slopes, about 1 in 30 to 40, while warm fronts have slopes of 1 in 60 to 120; thus precipitation is usually more intense and areally more concentrated at cold fronts than at warm fronts.
When a warm front and a cold front meets this is called?
A warm air mass pushes into a colder air mass (the warm front), and then another cold air mass pushes into the warm air mass (the cold front). This is known as an occluded front. At an occluded front, the cold air mass from the cold front meets the cool air that was ahead of the warm front.
What happens when warm water meets cold air?
As Wired noted, hot water is closer to steam than cold water, so when it’s thrown into cold air it quickly breaks into thin, small droplets each with a large surface area. And, in extreme cold, the tiny droplets freeze before they near the ground, leaving a cloud of ice crystals.
What’s the difference between a warm and cold occlusion?
A warm occlusion occurs as cool air moves rapidly into an area with an existing warm front. The difference from a cold occlusion is that the approaching cool air is not as cold as the retreating cold air in the existing front. Precipitation can usually be expected when an occluded front passes through an area.
What makes a cold front an occluded front?
In fact, the speed of a cold front is about double that of a typical warm front. As a result, a cold front will sometimes overtake an existing warm front. Essentially, an occluded front forms as three air masses meet. There are two types of occluded fronts: Warm occlusions. Cold occlusions.
When does a cold front lift a warm front?
A cold occlusion occurs when a cold front lifts a warm front. In the case of a cold front and a warm front, there are typically two air masses that are interacting. On the diagram below, just behind the cold front there are shown to be two air masses. The colder dense air at the surface and a different air mass aloft.
How does occlusion occur in a rotating low pressure system?
Occlusion: Meteorology a process by which the cold front of a rotating low-pressure system catches up the warm front, so that the warm air between them is forced upwards. Such a front is formed when a cold air mass overtakes a warm air mass and goes underneath it.